Wrapping machine



Jnne 2, 1931. J, BERRY 1,807,651 I wRAPi-INGMACHHE Filed April so. '1928 2 sheets-sheet 1 'IFM/ENTDF? WV@ L June 2, 1931. J. DERRY WRAPPING MACHINE Filed April so. 192s 2 Sheets-Sheet 2 ATTUHNEY Patented June 2, 1931 UNITED STATES JASPER DERBY, OF MEDFORD, MASSACHUSETTS, ASSIGNOR TO ANDREW TERKELSEN,

oF NEWTON, MASSACHUSETTS WRAPPING MACHINE Application led- April 30,

This invention relates Vto machines .for wrapping articles with a spiral winding of paper or the like and in which the article is supported androtated bypositively driven rolls during the wrapping operation.

Heretofore in the use of machines of this type, when the supply of wrapping material became exhausted or when the wrapping material broke, after the article had been partially wrapped, it has been necessary for the operator to drag the work forward or move it backward over the rolls to a proper .position for again attaching the wrapping material.` This has been a very diflicult opera.- t-ion and has often resultedin the tearing of the wrapping partially covering' the article. p'

It is an object of the present vinvention to provide a machine of this general .type in which the work may be conveniently moved to a proper position for attaching a new strip of wrapping material to the article when the old strip becomes broken or when the supply has run out. With this .in view, the

' present invention contemplates the provision in a machine of this type of means for disengaging the driving connections to the rolls for rotating and supporting the work and which, preferably, may be operated by the usual mechanism for starting the operation of the machine.

Before explaining in detail the present invention, and the method or mode of operation embodied therein, it is to be understood that Y the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention 'is capable of other embodiments and of being practised or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and it is not intended to limit the invention beyond the terms of the several claims hereto appended or the requirements of the prior art.

The invention will be more clearly understood from the following description in conjunction with the accompanying drawings, in which:

1928. Serial No. 273,947.

Fig. 1 is arear elevational view of th same, and t Fig. 2 is a side elevational view of a machine embodying the invention. The machine illustrated comprises a base upon which is mounted an upright 11 in which a shaft`12is rotatably mounted. A yoke 13 is` pivotally mounted near one end upon the shaft 12 and is adjustably secured near the other end to an upright 14 which extends from the base. Thev adjustable connection between .the upright and yoke comprises a bolt 15 extending from the upright through a slot'lG in the yoke. A shuttle 17 is rotated and supported by a friction drive disk 18 and idler disks 19 rotatably mounted upon the yoke. A spool 20 of wrapping material, such as paper, is supported for rotation upon a stud 21 on the shuttle.

A. motor 22 is carried by brackets 23 mounted upon a support 23a movable vertically relative to the base 10. For this purpose the support 23a is provided with a lug 24depending through an opening 10o in the base. One endofa treadle 25 is pivotally connected tothe lug 24, the treadle being pivotally connected at an intermediate point to a lug 26 depending from the base 10. The armature shaft ofthe motor is provided with a friction `disk 27 adapted for engagement with a disk 28 rotatably mounted upon the shaft 12 and in operative engagement with the friction disk 18.

The shaftr12 is provided with a worm 29 adapted to engage a worm wheel 30 mounted upon a shaft 31 which is rotatably supported inthe frame or upright 11. AV clutch member 33 is slidably mounted upon the shaft 31 to rotate therewith, said clutch member cooperating withrthe clutch member 34 loosely mounted on the shaft. The member 33 normallyfis held in engagement With the member.34 by a spring 35 extending between the member 33 andthe upright 11. `A sprocket wheel 38 is rigidly mounted upon the clutch i member 34 and is connected by a chain 39 to a sprocket wheel 40 secured upon one end of a shaft 41 which is rotatably mounted in the upright frame 32. The shaft 41 is provided at itsother end with a bevelled gear 42 which meshes with a bevelled gear 43 mounted upon one end of a shaft 44 extending vertically in the frame 32 and carrying at its upper end a bevel gear 45 which has a driving connection with one of a pair of intermeshing bevel gears 46 on the ends of shafts 47 carrying the work feed rolls 48 and which are mounted in suitable bearings 49 in a frame 32. A sprocket wheel 50 upon the shaft 41 is connected by a chain 51 to another pair' of work' feed rolls (not shown) upon the other side of the shuttle. In order that the work feed rolls may be disengaged from their drivingL connections with the motor, a clutch operating arm 55 is pivotally mounted at an intermediate point to a stud 52 in the frame 11 and has itsforked end 56 positioned in a groove 57 in themovable clutch member 33. An upwardly extending arm or finger 60 is secured to the support 23 for the motor, as by bolts 61, and extends over the free end of the arm 55.

In operation, the end of the strip S of wrapping material is attached to the article to be wrapped and the machine started by depressing the free end of the treadle 25. In so doing the motor is raised to bring the friction disk 27 into engagement with the friction disk 28 and thereby rotate the latter as well as the shuttle 17. At the same time the sha-ft 12 is rotated to actuate the worm and turn the worm wheel 30 and shaft 31. By de# pressing the treadle the linger 60 is elevatedl thereby permitting the spring 35 to move the clutch member 33'into engagement with the member 34 and therebyv operatively connect the motor with the work driving rolls 48.V If it is desired to stop the machine in casef the strip S being' wrapped upon the article' breaks or its supply runs out before the wrapL ping is completed, as indicated bythe free end F in Fig. 1, the operator'takes his foot off the treadle thereby lowering the motor out of operative engagement with the' driving mechanism for the shuttle and permitting the finger 60 to engage the free-'end ofthe clutch' disengaging lever 55 and move the clutch member 33 away from the member 34 against the action of the spring' 35. This permits the work to be rotated freely upon the work supporting rolls 48 to bring the end ofthe partial wrapping to a suitable position adj acent the shuttle for attaching the end of a new strip of Wrapping material so that thel wrapping of the article maybe completed;

What I claimis: y 1. In a wrapping machine for annular'articles, in combination, a rotatable shuttle, mechanism for rotating the shuttle, a motor for driving said mechanism, meansfor Inov-L ing the motor into and out of operative relation to said mechanism, feed rolls for' supporting and rotating the work, driving connections between said motor and feed rollsv including a clutch, and-means Operable for actuating said clutch by moving said motor into and out of operative relation to said mechanism.

2. In a wrapping machine for annular articles, in combination, a rotatable shuttle, mechanism for rotating the shuttle, a motor for driving said mechanism, means for' moving the motor into and out of operative relation to said mechanism, feed rolls for supporting and rotating the work, driving connectionsl between said motor and feed rolls including a clutch, and means for disengagiii`g`said clutch by moving said motor out of operative relation to said mechanism.

3. In a wrapping machine for annular articles, in combination, a rotatable shuttle, driving mechanismy for rotating the shuttle including a motor, a movable support for said motor, a treadle for moving said support to bring said motor into and out of operative relation with said mechanism, feed rolls for rotatably supporting the work, driving connections` between said motor and feed rolls' including a clutch, means for disengaging said clutch, and a finger' movable with said support for actuating said means.

4. In a wrapping machine for annular articles, in combination, a` rotatable shuttle, driving mechanism for rotating the shuttle including a motor, a movable support for said motor, a treadle for moving said support to bring said motor into and out of operative relation with said mechanism, feed rolls for supporting and rotating the work, driving connections between said motor and feed rolls, said driving connections including a spring engageable clutch, a clutchdisengaging lever, and a finger movable with said sup port for actuating said lever.

In testimony. whereof I affix my signature.

JASPER DERRY. 

